Filter cassette



FIG. 1 is a front-right perspective view of a filter cassette according to the present disclosure.

FIG. 2 is a rear elevation view of the filter cassette.

FIG. 3 is a front elevation view of the filter cassette.

FIG. 4 is a right side elevation view of the filter cassette.

FIG. 5 is a left side elevation view of the filter cassette.

FIG. 6 is a bottom plan view of the filter cassette; and,

FIG. 7 is a top plan view of the filter cassette.

The broken lines shown in FIG. 5 of the drawings indicate portions of the filter cassette that form no part of the claimed design. 

CLAIM The ornamental design for the filter cassette, as shown and described. 